<template>
  <el-container class="lokh">
    <!-- 头部 -->
  <el-header>
    <div>
      <img src="../assets/jk.png" alt="" class="l69">
      <span>后台管理系统</span>
    </div>
    <el-button type="info" @click="loguot">退出</el-button></el-header>
  <!-- 主体 -->
  <el-container>
    <!-- 侧边栏 -->
     <el-aside :width="togglebuttons ? '64px' : '200px'">
       <div class="toggle-button" @click="togglebutton">|||</div>
      <el-menu
      background-color="#333744"
      text-color="#fff"
      active-text-color="#409eff"
      unique-opened
      :collapse="togglebuttons"
      :collapse-transition="false"
      :router="true"
      :default-active="activePath">
      <!-- 一级菜单 -->
      <el-submenu :index="item.id+''" v-for="item in mennulist" :key="item.id" >
        <template slot="title">
          <i :class="iconsObj[item.id]"></i>
          <span>{{item.authName}}</span>
        </template>
        <!-- 二级菜单 -->
        <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/' + subItem.path)">
          <i class="el-icon-menu"></i>
          <span>{{subItem.authName}}</span>
        </el-menu-item>
      </el-submenu>
    </el-menu>
    </el-aside>
    <!-- 内容 -->
    <el-main><router-view></router-view></el-main>
  </el-container>
</el-container>
</template>
<script>
export default {
  data () {
    return {
      mennulist: [],
      iconsObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      togglebuttons: false,
      activePath: ''
    }
  },
  created() {
    this.getMN()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    loguot() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMN() {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.mennulist = res.data
      console.log(res)
    },
    togglebutton() {
      this.togglebuttons = !this.togglebuttons
    },
    saveNavState(activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  }
}
</script>
<style >
  .lokh{
    width: 100%;
    height: 100%;
  }
  .el-header{
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
  }
  .el-header div{
    display: flex;
    align-items: center;
  }
  .el-header div span{
    margin-left: 15px;
  }
  .el-aside{
    background-color: #333744;
  }
  .el-aside .el-menu{
    border-right: none !important;
  }
  .el-main{
    background-color: #eaedf1;
  }
  .l69{
    height: 60px;
    width: 60px;
  }
  .iconfont{
    margin-right: 10px;
  }
  .toggle-button{
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
  }
</style>
